Final answer:
The first step that happens when the CPU has finished a task and is ready to do another task is the decode step. After that comes the execute step. The delete step mentioned in the question is not a standard step in the CPU process. The correct answer is B.
Step-by-step explanation:
When the CPU has finished a task and is ready to do another task, the first step that happens is the decode step. In this step, the CPU retrieves the next instruction from memory and decodes it, determining what operation needs to be performed.
After the decode step, the next step is the execute step. In this step, the CPU actually performs the operation specified by the decoded instruction, such as adding two numbers or comparing two values.
The delete step mentioned in the question is not a standard step in the CPU process. It seems to be a typo or a misunderstanding.
The first step the CPU takes when starting a new task after completing one is typically fetching the next instruction, not deleting, decoding, or executing. A context switch may occur in a multitasking environment.
When the CPU has finished a task and is ready to begin another, the first step it performs is not delete, decode, or execute. These steps are part of the CPU's process when handling any given instruction, but they do not describe what happens when transitioning between tasks. When a task is completed, a CPU will typically undergo a context switch if it's a multitasking environment or wait for the next instruction or task from a queue. Neither deletion nor execution is the first step in starting a new task; instead, the CPU will often fetch the next instruction from memory, which leads to the decode phase prior to actual execution.